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| author | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 19:59:05 -0400 |
|---|---|---|
| committer | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 19:59:05 -0400 |
| commit | 1f19f33e45791ea59aed048796fc68672c6723a5 (patch) | |
| tree | 54625fba89e91d1c2177801ec635e8528bba937f /static/netbsd/man4/mcpgpio.4 4.html | |
| parent | ac5e55f5f2af5b92794c2aded46c6bae85b5f5ed (diff) | |
docs: Removed Precompiled HTML
Diffstat (limited to 'static/netbsd/man4/mcpgpio.4 4.html')
| -rw-r--r-- | static/netbsd/man4/mcpgpio.4 4.html | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/static/netbsd/man4/mcpgpio.4 4.html b/static/netbsd/man4/mcpgpio.4 4.html deleted file mode 100644 index 32b10b05..00000000 --- a/static/netbsd/man4/mcpgpio.4 4.html +++ /dev/null @@ -1,99 +0,0 @@ -<table class="head"> - <tr> - <td class="head-ltitle">MCPGPIO(4)</td> - <td class="head-vol">Device Drivers Manual</td> - <td class="head-rtitle">MCPGPIO(4)</td> - </tr> -</table> -<div class="manual-text"> -<section class="Sh"> -<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1> -<p class="Pp"><code class="Nm">mcpgpio</code> — <span class="Nd">Driver - for Microchip I/O Expanders on I2C and SPI bus</span></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1> -<section class="Ss"> -<h2 class="Ss" id="I2C"><a class="permalink" href="#I2C">I2C</a></h2> -<p class="Pp"><code class="Cd">mcpgpio* at iic? addr ?</code> - <br/> - <code class="Cd">gpio* at gpiobus?</code></p> -</section> -<section class="Ss"> -<h2 class="Ss" id="SPI"><a class="permalink" href="#SPI">SPI</a></h2> -<p class="Pp"><code class="Cd">mcpgpio0 at spi? slave 0 flags 0</code> - <br/> - <code class="Cd">mcpgpio1 at spi? slave 0 flags 1</code> - <br/> - <code class="Cd">mcpgpio2 at spi? slave 0 flags 2</code> - <br/> - <code class="Cd">mcpgpio3 at spi? slave 0 flags 3</code> - <br/> - <code class="Cd">gpio* at gpiobus?</code></p> -</section> -</section> -<section class="Sh"> -<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> -<p class="Pp">The <code class="Nm">mcpgpio</code> driver supports the following - Microchip I/O Expanders:</p> -<dl class="Bl-tag"> - <dt>MCP23008</dt> - <dd>8-bit I/O expander, I2C interface</dd> - <dt>MCP23S08</dt> - <dd>8-bit I/O expander, SPI interface</dd> - <dt>MCP23017</dt> - <dd>16-bit I/O expander, I2C interface</dd> - <dt>MCP23S17</dt> - <dd>16-bit I/O expander, SPI interface</dd> - <dt>MCP23018</dt> - <dd>16-bit I/O expander, open-drain outputs, I2C interface</dd> - <dt>MCP23S18</dt> - <dd>16-bit I/O expander, open-drain outputs, SPI interface</dd> -</dl> -<p class="Pp">Access to the pins is provided by the <a class="Xr">gpio(4)</a> - interface.</p> -<p class="Pp">The SPI version of these devices support multiple chips per chip - select signal. On the MCP23S08 and MCP23S17, this is achieved by tying the - address select pins to VDD or GND to select an address (0-3 on MCP23S08 or - 0-7 on MCP23S17). The MCP23S18 has a similar capability, but uses an analog - voltage input on a single address select pin, along with an internal voltage - divider ladder and a series of comparators to generate the 3 address bits; - see the data sheet for details. The <var class="Ar">flags</var> argument in - the configuration directive for SPI attachments selects the hardware address - of the chip instance for that driver instance.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE - ALSO</a></h1> -<p class="Pp"><a class="Xr">gpio(4)</a>, <a class="Xr">iic(4)</a>, - <a class="Xr">intro(4)</a>, <a class="Xr">spi(4)</a></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1> -<p class="Pp">The <code class="Nm">mcpgpio</code> driver first appeared in - <span class="Ux">NetBSD 7.0</span>. It was overhauled in - <span class="Ux">NetBSD 10.0</span> to support additional chip types and to - add the I2C attachment.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1> -<p class="Pp">The <code class="Nm">mcpgpio</code> driver was written by - <span class="An">Frank Kardel</span> - <<a class="Mt" href="mailto:kardel@NetBSD.org">kardel@NetBSD.org</a>> - and <span class="An">Jason R. Thorpe</span> - <<a class="Mt" href="mailto:thorpej@NetBSD.org">thorpej@NetBSD.org</a>>.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1> -<p class="Pp">SPI instances of the <code class="Nm">mcpgpio</code> driver do not - utilize the Device Tree bindings for this device.</p> -<p class="Pp">The <code class="Nm">mcpgpio</code> driver does not currently act - as a GPIO provider for the platform device tree.</p> -</section> -</div> -<table class="foot"> - <tr> - <td class="foot-date">January 10, 2022</td> - <td class="foot-os">NetBSD 10.1</td> - </tr> -</table> |
